binomial and poisson

D

dawsob3

Guest
a) If X- bin (n,p) show that for k (0,1,2,..., n-1) show that the recurrence relation
f(k+1)=
cramster-equation-20111121053116345582799198796788040.gif
holds.

Hint: consider f(k+1)/f(k)

b) Simlilary, if X- Poisson (λ) show that the recurrence relation f(k+1)= (λ/k+1)(f(k)) holds.

thank you so much.
 
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